# How do I scan through beginning blocks to the latest block in search of some events

**URL:** <https://forum.flow.com/t/how-do-i-scan-through-beginning-blocks-to-the-latest-block-in-search-of-some-events/3071>\
**Category:** Uncategorized\
**Tags:** flow-sdk-go\
**Created:** [May 2, 2022, 8:08pm UTC](https://forum.flow.com/t/how-do-i-scan-through-beginning-blocks-to-the-latest-block-in-search-of-some-events/3071 "2022-05-02T20:08:47Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![srigumm](https://avatars.discourse-cdn.com/v4/letter/s/f07891/32.png) [@srigumm](https://forum.flow.com/u/srigumm)\
**Post date:** [May 2, 2022, 8:08pm UTC](https://forum.flow.com/t/how-do-i-scan-through-beginning-blocks-to-the-latest-block-in-search-of-some-events/3071/1 "2022-05-02T20:08:47Z")

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I have a requirement to scan through blocks from the beginning (or atleast a year back blocks) and find events related to my NFT.

If I have to use `GetEventsForHeightRange`, what should I use for start\_range?

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**Author:** ![srigumm](https://avatars.discourse-cdn.com/v4/letter/s/f07891/32.png) [@srigumm](https://forum.flow.com/u/srigumm)\
**Post date:** [May 3, 2022, 3:37pm UTC](https://forum.flow.com/t/how-do-i-scan-through-beginning-blocks-to-the-latest-block-in-search-of-some-events/3071/2 "2022-05-03T15:37:27Z")

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appreciate your help/inputs on this.

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**Author:** ![kimcodeashian](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.flow.com/kimcodeashian/32/498_2.png) [@kimcodeashian](https://forum.flow.com/u/kimcodeashian)\
**Post date:** [May 31, 2022, 8:10pm UTC](https://forum.flow.com/t/how-do-i-scan-through-beginning-blocks-to-the-latest-block-in-search-of-some-events/3071/3 "2022-05-31T20:10:55Z")

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Querying events can be a heavy task. I would recommend using event indexing services such as [Graffle](https://graffle.io/)

I’m not entirely sure what the start\_range would be a year ago from but it may be useful to check out the [Past Sporks Info](https://docs.onflow.org/node-operation/past-sporks/#mainnet-6) page on our docs and find the block height from a spork from a year back 🙂