[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8,"_9":10},"actionData","errors","root",{"_183":184,"_185":186},"routes/_app.x.$handle.$name",{"_11":12,"_13":14,"_15":16,"_18":19,"_17":-7,"_137":-5,"_20":138,"_22":139,"_140":141,"_142":143,"_25":144,"_24":-5,"_145":146,"_147":148,"_149":49,"_150":151,"_152":68,"_153":-5,"_154":-5,"_155":156},"routes/_app.x.$handle.$name.branch.$branch.code.$",{"_11":12,"_13":14,"_15":16,"_17":-7,"_18":19,"_20":21,"_22":23,"_24":-7,"_25":26,"_27":28,"_29":-5,"_30":31,"_32":33,"_34":-5},"handle","ashryanio","name","getJsonAndRenderAsImage","branchName","main","version","path","","project",{"_35":95,"_13":14,"_37":96,"_47":-5,"_97":68,"_50":51,"_98":51,"_99":-5,"_100":-5,"_101":102,"_103":62,"_104":68,"_105":-5,"_106":-5,"_107":83,"_53":54,"_108":-5,"_109":-5,"_110":-5,"_111":-5,"_112":113,"_114":113,"_115":116,"_117":116,"_118":116,"_119":113,"_120":113,"_121":122,"_123":124,"_125":126,"_48":49},"tree",[86,87],"file","contents",[57,58],"upstream",{"_35":36,"_37":38,"_39":40,"_13":16,"_41":42,"_17":33,"_43":-5,"_44":-5,"_45":46,"_47":-5,"_48":49,"_50":51,"_52":12,"_53":54,"_55":56},"pull","ahead",6,"behind",29,"envVars","id","30e72664-2785-11f0-b46e-569c3dd06744","createdAt",["D",1746211345302],"updatedAt",["D",1727801615583],"projectId","30e6c764-2785-11f0-b46e-569c3dd06744","forkedBranchId","forkedBranchVersion","lockfileKey","1746245617780-esm.town_v_ashryanio_getBlobAndRenderAsImage@29-main","deletedAt","isOwned",false,"privacy","public","userHandle","orgId","112e17ac-118d-4072-aca6-a4ddc6b3970f","projectName","getBlobAndRenderAsImage",{"_35":78,"_13":79,"_61":80,"_63":-5,"_64":65,"_66":81,"_67":68,"_37":82,"_17":83,"_71":24,"_73":84,"_75":49,"_76":-5,"_18":85},{"_35":59,"_13":60,"_61":62,"_63":-5,"_64":65,"_66":31,"_67":68,"_37":69,"_17":70,"_71":72,"_73":74,"_75":49,"_76":-5,"_18":77},"31bf9cba-2785-11f0-b46e-569c3dd06744","main.tsx","fileId","31a060b6-2785-11f0-b46e-569c3dd06744","parentId","branchId","31962a60-2785-11f0-b46e-569c3dd06744","branchVersion","latest",true,["D",1727805569681],5,"fileType","http","content","/** @jsxImportSource https://esm.sh/react */\nimport React, { useEffect, useState } from \"https://esm.sh/react\";\nimport { createRoot } from \"https://esm.sh/react-dom/client\";\nimport { blob } from \"https://esm.town/v/std/blob\";\n\nfunction App() {\n const [imageData, setImageData] = useState(null);\n const [error, setError] = useState(null);\n\n useEffect(() => {\n async function fetchImage() {\n try {\n const response = await fetch(\"/image\");\n if (!response.ok) {\n throw new Error(`HTTP error! status: ${response.status}`);\n }\n const data = await response.json();\n if (data && data.image) {\n setImageData(`data:image/png;base64,${data.image}`);\n } else {\n throw new Error(\"Invalid image data received\");\n }\n } catch (error) {\n console.error(\"Error fetching image:\", error);\n setError(error instanceof Error ? error.message : \"Error loading image\");\n }\n }\n fetchImage();\n }, []);\n\n return (\n

Image from Blob Storage

\n {imageData\n ? (\n \n )\n : error\n ?

Error: {error}

\n :

Loading image...

}\n

\n );\n}\n\nfunction client() {\n createRoot(document.getElementById(\"root\")!).render();\n}\n\nif (typeof document !== \"undefined\") {\n client();\n}\n\nexport default async function server(request: Request): Promise {\n if (request.url.endsWith(\"/image\")) {\n try {\n const jsonData = await blob.getJSON(\"image-test\");\n return new Response(JSON.stringify(jsonData), {\n headers: { \"Content-Type\": \"application/json\" },\n });\n } catch (error) {\n console.error(\"Error fetching blob:\", error);\n return new Response(JSON.stringify({ error: \"Server error\", details: error.message }), {\n status: 500,\n headers: { \"Content-Type\": \"application/json\" },\n });\n }\n }\n\n // Serve index.html, aka \"/\"\n return new Response(\n `\n \n \n Image from Blob Storage\n \n \n \n

\n \n \n \n \n `,\n {\n headers: {\n \"content-type\": \"text/html\",\n },\n },\n );\n}\n\nconst css = `\nbody {\n margin: 0;\n font-family: system-ui, sans-serif;\n display: flex;\n justify-content: center;\n align-items: center;\n min-height: 100vh;\n background-color: #f0f0f0;\n}\n#root {\n background-color: white;\n padding: 20px;\n border-radius: 8px;\n box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);\n}\nh1 {\n color: #333;\n}\n`;","deleted","label",[60],"31a06872-2785-11f0-b46e-569c3dd06744","README.md","31a068ea-2785-11f0-b46e-569c3dd06744",1,["D",1727800817769],0,"# getJsonAndRenderAsImage\n\nShows how to get a JSON object containing a base64 imaged stored in Val Town blob storage and render it as an image in the DOM with React.\n\n## Setup\n\nMake sure you have a JSON object named `image-test` in your Val Town blob storage (alternatively, you can change the key name in the blob getter in the script).\n\nThe object should look like this:\n\n```json\n{\n \"image\": \"base64stringgoeshere\"\n}\n```\n\nTo easily upload an image to your blob storage, [fork this val](\ngetBlobAndRenderAsImage), run it, and enter your API key in the password input.\n\n## How it works\n\n1. Fetching the JSON:\n\n - The client-side React component makes a fetch request to \"/image\".\n - This request is handled by our server function.\n\n\n2. Server-side handling:\n\n - The server function calls `blob.getJSON(\"image-test\")`.\n - This `blob.getJSON()` method makes an HTTP request to the Val Town API.\n - The API returns a Response object containing the JSON data.\n\n\n3. Processing the blob on the server:\n\n - We receive this Response object from `blob.getJSON()`.\n - We don't need to extract the data on the server side.\n - We can directly return this Response object to the client.\n\n\n4. Sending the response to the client:\n\n - We set the appropriate \"Content-Type\" header (e.g., \"application/json\").\n - We return the Response object to the client.\n\n\n5. Client-side handling:\n\n - The fetch request in the React component receives the Response.\n - We call `response.json()` to parse the JSON object from the Response.\n\n\n6. Creating a data URL:\n\n - We extract the image data from the JSON object at `data.image`.\n - We prepend the data URL prefix to the image data.\n - This data URL is a base64-encoded string representing the image.\n\n\n7. Updating the React state:\n\n - We set the data URL as the state of our component.\n\n\n8. Rendering the image:\n\n - We use the data URL as the src attribute of an `` tag.\n - The browser decodes the base64 data and renders the image.\n\n## Further reading on Val Town blobs\n\n- [Blob storage overview in Val Town docs](https://docs.val.town/std/blob/)\n- [Val Town REST API references for blobs](https://docs.val.town/openapi#tag/blobs)\n- [Val Town blob std lib source code](https://www.val.town/v/std/blob)",[79],{"_35":78,"_13":79,"_61":80,"_63":-5,"_64":65,"_66":81,"_67":68,"_37":92,"_17":83,"_71":24,"_73":84,"_75":49,"_76":-5,"_89":93,"_18":94},{"_35":59,"_13":60,"_61":62,"_63":-5,"_64":65,"_66":31,"_67":68,"_37":88,"_17":70,"_71":72,"_73":74,"_75":49,"_76":-5,"_89":90,"_18":91},["D",1727805569681],"children",[],[60],["D",1727800817769],[],[79],"3195d934-2785-11f0-b46e-569c3dd06744",["D",1746211346450],"legacyEnvVars","httpPrivacy","description","imageUrl","userId","97567c3b-8285-4589-880d-547c23383b76","pinnedFileId","pinPreview","pinMigrated","screenshotVersion","likeCount","tursoName","tursoHostname","tursoMeasuredAt","pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_11":12,"_136":132},"org",{"_11":12,"_130":-5,"_131":132,"_101":102,"_133":134,"_135":49},"branch",{"_17":31,"_13":16,"_35":65,"_41":95,"_43":36,"_44":83,"_127":51,"_128":42,"_129":54,"_55":14,"_52":12},"forkedProjectPrivacy","forkedProjectId","forkedProjectOrgId","displayName","avatar","https://img.clerk.com/eyJ0eXBlIjoicHJveHkiLCJzcmMiOiJodHRwczovL2ltYWdlcy5jbGVyay5kZXYvb2F1dGhfZ2l0aHViL2ltZ18yaG5kR0hRRTM0S1BSeXlIR2hCdjFqb1dTS3AifQ","tier","pro","canRestrictVals","profileImageUrl","adoptOrgId",{"_35":95,"_13":14,"_37":179,"_47":-5,"_97":68,"_50":51,"_98":51,"_99":-5,"_100":-5,"_101":102,"_103":62,"_104":68,"_105":-5,"_106":-5,"_107":83,"_53":54,"_108":-5,"_109":-5,"_110":-5,"_111":-5,"_112":113,"_114":113,"_115":116,"_117":116,"_118":116,"_119":113,"_120":113,"_121":180,"_123":181,"_125":182,"_48":49},[173,174],"files",[173,174],"counts",{"_164":83,"_165":81,"_166":83,"_34":167,"_168":169},[160,161],"upstreamProject",{"_35":42,"_13":56,"_99":-5,"_100":-5,"_50":51,"_121":159},"upstreamBranch",{"_35":36,"_37":157,"_39":158,"_13":16,"_41":42,"_17":33,"_43":-5,"_44":-5,"_45":46,"_47":-5,"_48":49,"_50":51,"_52":12,"_53":54,"_55":56},"emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},["D",1746211345302],["D",1727801615583],{"_11":12,"_136":132},{"_35":78,"_13":79,"_61":80,"_63":-5,"_64":65,"_66":81,"_67":68,"_37":82,"_17":83,"_71":24,"_73":84,"_75":49,"_76":-5,"_18":163},{"_35":59,"_13":60,"_61":62,"_63":-5,"_64":65,"_66":31,"_67":68,"_37":69,"_17":70,"_71":72,"_73":74,"_75":49,"_76":-5,"_18":162},[60],[79],"pulls","branches","forks",{"_170":83,"_172":83},"connections",{"_170":83,"_171":83},"count","unfilledCount","emptyCount",{"_35":78,"_13":79,"_61":80,"_63":-5,"_64":65,"_66":81,"_67":68,"_37":92,"_17":83,"_71":24,"_73":84,"_75":49,"_76":-5,"_89":177,"_18":178},{"_35":59,"_13":60,"_61":62,"_63":-5,"_64":65,"_66":31,"_67":68,"_37":88,"_17":70,"_71":72,"_73":74,"_75":49,"_76":-5,"_89":175,"_18":176},[],[60],[],[79],["D",1746211346450],{"_11":12,"_136":132},{"_11":12,"_130":-5,"_131":132,"_101":102,"_133":134,"_135":49},{"_17":31,"_13":16,"_35":65,"_41":95,"_43":36,"_44":83,"_127":51,"_128":42,"_129":54,"_55":14,"_52":12},"ctx",{"_121":-5,"_154":216,"_217":218,"_219":220,"_221":49,"_222":49,"_223":49,"_224":68,"_225":-5,"_226":-7,"_227":-7,"_228":83,"_229":49,"_230":49,"_231":-5,"_232":49,"_233":49,"_234":49,"_235":-5},"ENV",{"_187":188,"_189":190,"_191":16,"_192":193,"_194":195,"_196":197,"_198":199,"_200":201,"_202":203,"_204":205,"_206":207,"_208":209,"_210":211,"_212":213,"_214":215},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","e87eb04e707cf64e7e532c8e8ec395f209e17f15","RENDER_GIT_BRANCH","POSTHOG_API_TOKEN","phc_nmoyuAkStEZuUp69rYlg1DZgrIt19Gx0Y4Hwf8tGgJP","POSTHOG_API_HOST","https://wart.val.town","WEB_API_TEMPLATE","https://{val}.web.val.run","APP_URL","https://www.val.town","MODULE_URL","https://esm.town","VANITY_WEB_API_TEMPLATE","https://{label}.val.run/","DENOLS_URL","https://lsp.val.town","NODE_ENV","production","CLOUDFLARE_TURNSTILE_SITE_KEY","0x4AAAAAACtaIZJH7s9rBMZ6","GOOGLE_CLIENT_ID","875989696899-jtsqkhlbdv5jrlsk8631p7ipjg3c6o62.apps.googleusercontent.com","STRIPE_PUBLISHABLE_KEY","pk_live_51N2zvWEpZTTLipIkVEwXrUG9AT0yeOOEYxszarZT1jpsZV58Ly6wlg3SltZpHN26CUalOBmUSY7adQRQiSkCZz2500qSXNkf8Y","API_URL","https://api.val.town",[],"preferencesKeybindings","default","preferencesTheme","light","preferencesFixers","preferencesCopilot","preferencesSelectionAi","preferencesCloseBrackets","preferencesChatPanelState","preferencesDprint","preferencesDenofmt","notificationCount","flagDenols","isBusinessOrgMember","businessOrgHandle","isBusinessOrgAdmin","isHigherTownieTier","navCollapsed","currentOrgId"]

Code