Trimming down JSON API responses effectively

I am trying to extract a specific value from an API query and looking for the most efficient way to achieve this.

This returns:

{"lamports":291171461600,"ownerProgram":"TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA","type":"token_account","rentEpoch":283,"account":"METAmTMXwdb8gYzyCPfXXFmZZw4rUsXX58PNsDg7zjL","tokenInfo":{"name":"Solice","symbol":"SLC","price":1.28,"volume":1253400,"decimals":6,"tokenAuthority":null,"supply":"400000000000000","type":"token_address"}}

However, I only need the value of "supply", which in this case is 400000000000000.

The solution should be minimal and machine-readable without relying on JavaScript processing.

My initial thought was using JS to filter it, but that's not ideal due to the reliance on JS processing.

javascriptarraysjsonfilteringsolana

Answer №1

If you want to speed up the process of extracting a specific field from JSON data, consider using a regex along with parsing the JSON into an object.

const regEx = /"desiredField":"([^"]*)"/
const match = regEx.exec(jsonData)
const extractedValue = match ? match[1] : undefined

https://regex101.com/r/Ab7Df4/1

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