slope

README

slope

A TUI viewer and editor for Sentry envelopes.

Features

• View, add, edit, delete, export, and save envelope items
• Selectable envelope items with payload viewers via pager
• Pretty-formatted and syntax-highlighted JSON headers and items
• Minidump crash dumps parsed and displayed as structured data
• Image attachments rendered inline with ANSI half-block art
• Binary payloads shown as hex dump
• Standalone viewer modes for JSON, minidump, image, text, and binary files

Install

go install github.com/jpnurmi/slope@latest

Or build from source:

go build .

Usage

TUI

slope <file.envelope>

Key bindings

Key	Action
j / k / Up / Down	Navigate items
Enter	View item payload in pager
e	Edit item payload in $EDITOR
a	Add attachment
x	Export item payload to file
d	Delete selected item
w	Save to file
q	Quit

CLI

slope header <file> [0-N]
slope payload <file> [0-N]

Index 0 refers to the envelope header/payload, and 1-N to individual items. Without an index, both commands list a summary of all entries.

List all headers:

$ slope header file.envelope
0: {"dsn":"...","event_id":"..."}
1: {"type":"event","length":888}
2: {"type":"session","length":249}
3: {"type":"attachment","length":42412,"filename":"minidump.dmp"}

List all payloads:

$ slope payload file.envelope
0: <4 items, 79095 bytes>
1: {"event_id":"...","timestamp":"...","platform":"native","level":"fatal",...}
2: {"init":true,"sid":"...","status":"crashed",...}
3: <binary 42412 bytes>
4: <binary 35546 bytes>

Show a specific item header:

$ slope header file.envelope 3
{"type":"attachment","length":42412,"filename":"minidump.dmp"}

Extract a payload to a file:

$ slope payload file.envelope 3 > minidump.dmp